Cv3 marks a very important point in Dracula's story, one whereupon he finally goes all out against humanity. The factors that lead to this point are indeed from other parts of the canon and rightly should not be ignored if the studio plans on having a flushed out backstory. The others are completely Justified in their concerns involving this.
Cv3 might not need to include these elements for its own story to work, but as we all know, television thrives on storytelling, and as such excluding such important elements to the story at large would not be a wise move.
Perhaps they intend to use some of these elements, perhaps they don't. We have no idea at present. What we do know is the existing details about the series in conjunction with the teaser image they have released--a teaser image which, accounting for the simple fact that we have only our own devices and knowledge to fill in the gaps we currently do not know, does not stack up with what we do. The castle design they have released, assuming it is finalized and permanent and is intended to be used in the final show, seems very out of place in regards to all known aspects of the series and its depiction of the true Castle. As a direct result, those of us with deep-rooted involvement with the canon are currently left only to assume that the design is being done for cool points alone. Combine this with other existing precedents such as the Abomination that is the Mega Man cartoon and you have a perfect recipe for concern.
You may quote everybody all day in any number of attempts to throw a wrench into what I am saying, but the simple fact of the matter is there is far more behind this mindset then simply being pissy the design is it to our tastes. If one major aesthetic facet appears to have been significantly altered for the sake of looking cool, then what else is on that chopping block? Shore, we don't know one way or the other right now, but as I've mentioned we currently can only fill in the gaps with what information we have and know, and that is precisely what several of us are doing.
And we don't like where are inferences seemed to lead. We could be wrong, we could be right, but at the end of the day we can only work with what we have.
And right now what we have does not bode well for some of us, nothing more and nothing less. If we are guilty of nitpicking too much, then so too are some of you guilty for anatgonizing us for doing so. Our thoughts and perspectives are not lesser in quality simply because they do not align with your own.
PostScript: haha wow my phone's voice to text really fucked this one up didn't it sorry for a couple of those